Relaxation-Driven Cyclic Cosmology (RDCC) v16. 0: Precision Two-Sector Dynamics, Mirror Thermodynamics Refinements, and Enhanced GW Forecasts This release (v16. 0) refines and deepens RDCC v15. 0 through precise mathematical modeling of mirror-sector physics, thermodynamically consistent cross-sector interactions, and detailed predictions for the stochastic gravitational wave background. No new paradigms or speculative extensions are introduced; instead, existing elements (CPT-conjugate mirror sector, bounce as CPT-fixpoint, gravitational coupling) are quantitatively sharpened and observationally focused. Key upgrades include: - Mirror-sector physics v2. 0: recombination, structure formation, SMBH growth, and neutrino decoupling models- Bounce–BH duality v2. 1: thermodynamically deepened mapping between cosmological bounce and black hole interiors- Precision GW cosmology v2. 0: analytical mirror SGWB spectra, frequency-dependent knicks, cross-sector forecasts, and GW lensing by mirror halos- Two-sector Boltzmann hierarchy v5. 0: gravitatively coupled, with mirror-CMB anisotropies and cross-power spectra- Multi-cycle evolution v2. 0: entropy regulation and cycle stability analysis- Observational pipeline v7. 0: two-sector joint likelihoods and cross-probe tension mapping- Simulation suite v7. 0: two-sector hydrodynamics, mirror BH population synthesis, and SGWB light-cone simulations RDCC remains strictly minimal: one effective complex scalar field Φ in a tilted double-well potential (tilt from Coleman-Weinberg corrections), standard Einstein gravity, and a gravitationally coupled CPT-mirror sector. No inflation, modified gravity, or additional fields required. The model is designed for high testability in the 2035–2045 era, with falsifiable signatures in GW cross-correlations, ΔNₑff shifts, mirror-CMB power excess, and bounce imprints, observable with LISA O4, Einstein Telescope, SKA Phase 2, CMB-S4, and advanced PTA networks. All previous versions, conceptual companions, and extensions are preserved and integrated in the unified synthesis document (linked as supplementary material). This version builds on: Relaxation-Driven Cyclic Cosmology (RDCC) v1. 0: A Minimal Eternal Framework and Its Dynamical Realization: https: //zenodo. org/records/18281686 Relaxation-Driven Cyclic Cosmology (RDCC) v2. 0: A Minimal Eternal Framework with Dynamical Realization and Extensions: https: //zenodo. org/records/18304744 Relaxation-Driven Cyclic Cosmology (RDCC) v5. 0: Bounce-Matching Formalism, Mirror-Sector Dynamics, and Refined Gravitational Waves: https: //zenodo. org/records/18307836 Relaxation-Driven Cyclic Cosmology (RDCC) v6. 0: Black Hole Bounces as Local CPT-Fixpoints, Full Perturbation Transfer Matrix and Mirror-Sector Microphysics: https: //zenodo. org/records/18312656 Relaxation-Driven Cyclic Cosmology (RDCC) v7. 0: Quantum-Corrected Black Hole Bounces, Full Perturbation Transfer Matrix with Phase-Shift, and Mirror Microphysics https: //zenodo. org/records/18327084 Relaxation-Driven Cyclic Cosmology (RDCC) v8. 0: Parameter Space Exploration, Data Confrontation, and Predictive Structure Formation https: //zenodo. org/records/18334398 Relaxation-Driven Cyclic Cosmology (RDCC) v9. 0: Predictive Cosmology, Nonlinear Structure Formation, and Astrophysical Signatures https: //zenodo. org/records/18336237 Relaxation-Driven Cyclic Cosmology (RDCC) v10. 0: Unified Cosmology, Full Simulations, and Observational Pipelines https: //zenodo. org/records/18336865 Relaxation-Driven Cyclic Cosmology (RDCC) v11. 0: Entropy Dynamics, Mirror Thermodynamics, EFT Consistency, and Naturalness https: //zenodo. org/records/18341147 Relaxation-Driven Cyclic Cosmology (RDCC) v12. 0: Precision Predictions, Multi-Probe Confrontation, and Quantum-Geometric Completion https: //zenodo. org/records/18346555 Relaxation-Driven Cyclic Cosmology (RDCC) v13. 0: Quantum Completion, Global Consistency, and Predictive Cosmology https: //zenodo. org/records/18348450 Relaxation-Driven Cyclic Cosmology (RDCC) v14. 0: Unified Quantum Gravity, Full-Cycle Simulation, and Multi-Messenger Precision Cosmology https: //zenodo. org/records/18351916 Relaxation-Driven Cyclic Cosmology (RDCC) v15. 0: Mirror-Sector Cosmology, Hidden-Universe Gravitational Waves, and Two-Sector Evolution https: //zenodo. org/records/18358095 While the core of RDCC remains a structural, timeless framework with fixpoint character, this document explores a dynamical realization of the bounce mechanism to enable concrete, falsifiable predictions. Related documents and the full RDCC ecosystem are available via Zenodo: https: //zenodo. org/records/18204087 Michael Lehmannmi. lehmann@gmx. de
Michael Lehmann (Tue,) studied this question.